Home / 2,907.46-4,012.25-1,581.16

Finding the Fourth Proportional to 2,907.46, 4,012.25 and 1,581.16

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Solution

The fourth proportional to 2,907.46, 4,012.25 and 1,581.16 is: 2,181.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,907.46 : 4,012.25 = 1,581.16 : x
  2. Step 2: Convert to fraction form
    2,907.46/4,012.25 = 1,581.16/x
  3. Step 3: Cross multiply
    2,907.46x = 4,012.25 × 1,581.16
  4. Step 4: Simplify right side
    2,907.46x = 6,344,009.21
  5. Step 5: Solve for x
    x = 6,344,009.21/2,907.46
  6. Step 6: Final answer
    x = 2,181.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.